Women are highly protective of their weddings. They don't want anything to go wrong -- and often become control freak bride-zillas along the way to the altar.

Guys, on the other hand, care a lot about their bachelor parties. And while there is a much greater margin of error with bachelor parties, there are still a few things that can cause the party to go very wrong.

According to Guyism.com, here are some ways to ruin a bachelor party:

1. Pass Out -- Guys usually get pretty drunk at bachelor parties. Drinking isn't a crime, but passing out at the bar is.

2. Forget to Arrange Transportation -- A bachelor party is one event where you shouldn't trust a designated driver from the group. Hire a professional.

3. Don't Help Pay for Things -- Friends need to pony up a few bucks because this is, more or less, a going away party for your buddy. On this night, he gets a free pass. Booze, drugs, lap dances, greens fees and bail money should all be taken care of by the other guys.

4. Say Something Stupid to the Bride's Father or Brother -- The bride's father or brother might be along for the ride, but they still play for the bride's team. Things can get wild, but don't tell any crazy stories that could cause your buddy trouble down the line.

Source: Guyism.com